CN216341746U

CN216341746U - Steel construction door that fire-resistant effect is good

Info

Publication number: CN216341746U
Application number: CN202122346693.8U
Authority: CN
Inventors: 张慧
Original assignee: Shanghai Tangchenrui Door Industry Co ltd
Current assignee: Shanghai Tangchenrui Door Industry Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-19
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a steel structure door with a good fire resistance effect, which comprises a door frame, wherein a limit door frame is welded and installed on the inner wall of the door frame, a sealing strip is fixedly installed on the front side wall of the limit door frame, a hinge is welded and installed on the inner wall of one side of the door frame, and a steel structure door is welded and installed on one side wall of the hinge. Through the first steel sheet of steel construction door's adoption, second steel sheet and first fire protection coating, the fire resistance ability that the polyvinyl chloride fire-retardant type organic resin material of second fire protection coating can effectual improvement steel construction door, prevent heat transmission through the insulating layer, rotate the handle through the rotation and drive the axis of rotation and rotate and then drive gear revolve, thereby it drives the check lock lever at spacing intracavity rebound to drive the rack at gear intracavity rebound through gear revolve, insert spacing downthehole and then realize locking the steel construction door when the check lock lever, and then be convenient for lock the steel construction door and the operation of unblock person of facilitating the use.

Description

Steel construction door that fire-resistant effect is good

Technical Field

The utility model relates to the technical field of steel structure doors, in particular to a steel structure door with a good fire resistance effect.

Background

The fireproof door can meet the requirements of fire resistance stability, integrity and heat insulation within a certain time, has the functions of preventing fire from spreading and smoke from spreading besides the function of a common door, and can prevent the fire from spreading within a certain time to ensure the evacuation of people.

Present prevent fire door can slow down stretching of intensity of a fire in safe the time of fleing, nevertheless prevent that fire door's intensity is not enough, often can take place to warp and damage, influences its normal use when the conflagration takes place, and current prevent that fire door locking structure operates complicacy, should not open the door when the conflagration and flee.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the steel structure door with good fire resistance effect, and solves the problems that the traditional steel structure door is easy to damage and the locking mechanism is not suitable for operation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a steel structure door with good fire-resistant effect comprises a door frame, wherein a limit door frame is welded and installed on the inner wall of the door frame, a sealing strip is fixedly installed on the front side wall of the limit door frame, a hinge is welded and installed on the inner wall of one side of the door frame, a steel structure door is welded and installed on one side wall of the hinge, the steel structure door is composed of a first steel plate, a second steel plate, a heat insulation layer, a first fireproof coating and a second fireproof coating, the rear side wall of the first steel plate is fixedly connected with the heat insulation layer, the rear side wall of the heat insulation layer is fixedly connected with the second steel plate, the surface of the second steel plate is provided with the second fireproof coating, the surface of the first steel plate is provided with the first fireproof coating, a gear cavity is formed inside the steel structure door, a limit cavity is formed inside the steel structure door, the limit cavity is communicated with the gear cavity, and a gear is rotatably installed on the rear side wall of the gear cavity, sliding mounting has the rack in the gear, the rack is the meshing installation setting with the gear, the top welding of rack installs the check lock lever, the check lock lever is located spacing intracavity and is the sliding mounting setting, spacing hole has been seted up at the inboard top of door frame, the preceding lateral wall welded mounting of gear has the axis of rotation, the axis of rotation runs through the preceding lateral wall in gear chamber and extends to the outside welding installation of steel construction door and rotates the handle.

Preferably, the sealing strip is located the junction of door frame and spacing door frame, and the sealing strip is the laminating setting with the steel construction door, and then can effectively keep apart harmful gas.

Preferably, the heat insulation layer is made of an aluminum foil composite material, so that heat in a fire can be isolated.

Preferably, the first fireproof coating and the second fireproof coating are made of polyvinyl chloride flame-retardant organic resin materials, and therefore the fireproof performance of the fireproof coating is improved.

Preferably, the steel structure door and the door frame are hinged through hinges.

Preferably, the limiting hole and the limiting cavity are correspondingly arranged, and the locking rod is matched with the limiting hole and the limiting cavity, so that the steel structure door can be locked and unlocked conveniently.

Compared with the prior art, the utility model has the beneficial effects that: the steel structure door with good fire-resistant effect has no gap between the steel structure door and the door frame through the steel structure door and the sealing strip, thereby effectively preventing harmful gas from entering in case of fire, effectively improving the fire resistance of the steel structure door through the first steel plate and the second steel plate adopted by the steel structure door and the polyvinyl chloride flame-retardant organic resin materials of the first fireproof coating and the second fireproof coating, the heat transmission is prevented through the heat insulation layer, the rotating shaft is driven to rotate by rotating the rotating handle so as to drive the gear to rotate, the gear rotates to drive the rack to move upwards in the gear cavity so as to drive the locking rod to move upwards in the limiting cavity, insert spacing downthehole and then realize locking the steel construction door when the check lock lever, otherwise the contrarotation rotates the handle and can realize carrying out the unblock to the steel construction door, and then is convenient for lock the steel construction door and unblock person of facilitating the use operation.

Drawings

FIG. 1 is a schematic structural view of an isometric view of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic structural view in elevation and section of the present invention;

fig. 4 is a schematic structural view of a sectional view of the steel structural door of the present invention.

In the figure: 1 door frame, 2 spacing door frames, 3 sealing strips, 4 hinges, 5 steel structure doors, 501 first steel plate, 502 second steel plate, 503 thermal-protective layer, 504 first fire-proof coating, 505 second fire-proof coating, 6 gear chambers, 7 spacing chambers, 8 gears, 9 racks, 10 locking rods, 11 spacing holes, 12 rotating shafts, 13 rotating handles.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-4, the utility model provides a technical scheme, a steel structure door with good fire resistance effect comprises a door frame 1, a limit door frame 2 is welded and installed on the inner wall of the door frame 1, a sealing strip 3 is fixedly installed on the front side wall of the limit door frame 2, the sealing strip 3 is positioned at the joint of the door frame 1 and the limit door frame 2, the sealing strip 3 and the steel structure door 5 are arranged in a fitting manner, so that harmful gas can be effectively isolated, a hinge 4 is welded and installed on the inner wall of one side of the door frame 1, a steel structure door 5 is welded and installed on one side wall of the hinge 4, the steel structure door 5 and the door frame 1 are arranged in a hinged manner through the hinge 4, the steel structure door 5 is composed of a first steel plate 501, a second steel plate 502, a thermal insulation layer 503, a first fireproof coating 504 and a second fireproof coating 505, a thermal insulation layer 503 is fixedly connected on the rear side wall of the first steel plate 501, the thermal insulation layer 503 is made of aluminum foil composite material, so that heat in case of fire can be isolated, the rear side wall of the heat insulation layer 503 is fixedly connected with a second steel plate 502, the surface of the second steel plate 502 is provided with a second fireproof coating 505, the surface of the first steel plate 501 is provided with a first fireproof coating 504, the first fireproof coating 504 and the second fireproof coating 505 are made of polyvinyl chloride flame-retardant organic resin materials, so that the fireproof performance of the steel door is improved, the inside of the steel door 5 is provided with a gear cavity 6, the inside of the steel door 5 is provided with a limit cavity 7, the limit cavity 7 is communicated with the gear cavity 6, the rear side wall of the gear cavity 6 is rotatably provided with a gear 8, a rack 9 is slidably installed in the gear 8, the rack 9 and the gear 8 are arranged in a meshing manner, the top of the rack 9 is welded with a locking rod 10, the locking rod 10 is positioned in the limit cavity 7 in a sliding manner, the top of the inner side of the door frame 1 is provided with a limit hole 11, the limit hole 11 is arranged corresponding to the limit cavity 7, and the locking lever 10 is matched with the limiting hole 11 and the limiting cavity 7, so that the steel structure door 5 can be locked and unlocked conveniently, the rotating shaft 12 is welded on the front side wall of the gear 8, and the rotating shaft 12 penetrates through the front side wall of the gear cavity 6 and extends to the outside of the steel structure door 5 to be welded with the rotating handle 13.

When in use: the steel structure door 5 and the doorframe 1 are closed, no gap is left between the steel structure door 5 and the doorframe 1 through the steel structure door 5 and the sealing strip 3, further effectively blocking harmful gas from entering in case of fire, effectively improving the fire resistance of the steel structural door 5 through the polyvinyl chloride flame-retardant organic resin material of the first steel plate 501, the second steel plate 502, the first fire-retardant coating 504 and the second fire-retardant coating 505 adopted by the steel structural door 5, the heat transmission is prevented by the heat insulation layer 503, the rotating shaft 12 is driven to rotate by rotating the rotating handle 13, and the gear 8 is driven to rotate, the gear 8 rotates to drive the rack 9 to move upwards in the gear cavity 6 so as to drive the locking rod 10 to move upwards in the limiting cavity 7, when the locking rod 10 is inserted into the limiting hole 11, the steel structure door is locked, otherwise, the handle 13 is rotated reversely, and the steel structure door 5 can be unlocked.

In conclusion, the steel structure door with good fire-resistant effect has no gap between the steel structure door 5 and the door frame 1 through the steel structure door 5 and the sealing strip 3, so that harmful gas can be effectively prevented from entering in case of fire, the fire-resistant performance of the steel structure door 5 can be effectively improved through the polyvinyl chloride flame-retardant organic resin materials of the first steel plate 501, the second steel plate 502, the first fireproof coating 504 and the second fireproof coating 505 adopted by the steel structure door 5, heat transmission is prevented through the heat-insulating layer 503, the rotating shaft 12 is driven to rotate through the rotating handle 13, so as to drive the gear 8 to rotate, the gear 8 rotates, so as to drive the rack 9 to move upwards in the gear cavity 6, so as to drive the locking rod 10 to move upwards in the limiting cavity 7, when the locking rod 10 is inserted into the limiting hole 11, the steel structure door is locked, otherwise, the steel structure door 5 can be unlocked through reversely rotating the rotating handle 13, and then be convenient for lock steel structure door 5 with unblock person's operation of being convenient for, solved traditional steel structure door and damaged easily and the problem that locking mechanical system should not operate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The steel structure door with good fire resistance effect comprises a door frame (1) and is characterized in that a limit door frame (2) is welded and installed on the inner wall of the door frame (1), a sealing strip (3) is fixedly installed on the front side wall of the limit door frame (2), a hinge (4) is welded and installed on the inner wall of one side of the door frame (1), a steel structure door (5) is welded and installed on one side wall of the hinge (4), the steel structure door (5) is composed of a first steel plate (501), a second steel plate (502), a heat insulation layer (503), a first fire-proof coating (504) and a second fire-proof coating (505), the rear side wall of the first steel plate (501) is fixedly connected with the heat insulation layer (503), the rear side wall of the heat insulation layer (503) is fixedly connected with the second steel plate (502), the surface of the second steel plate (502) is provided with the second fire-proof coating (505), the surface of the first steel plate (501) is provided with the first fire-proof coating (504), a gear cavity (6) is arranged inside the steel structure door (5), a limit cavity (7) is arranged inside the steel structure door (5), the limiting cavity (7) is communicated with the gear cavity (6), a gear (8) is rotatably arranged on the rear side wall of the gear cavity (6), a rack (9) is arranged in the gear (8) in a sliding way, the rack (9) and the gear (8) are arranged in a meshing way, the top of the rack (9) is welded with a locking rod (10), the locking rod (10) is positioned in the limiting cavity (7) and is arranged in a sliding way, the top of the inner side of the door frame (1) is provided with a limiting hole (11), the front side wall of the gear (8) is welded with a rotating shaft (12), the rotating shaft (12) penetrates through the front side wall of the gear cavity (6) and extends to the outer portion of the steel structure door (5) to be welded with a rotating handle (13).

2. The steel structure door with good fire resistance effect according to claim 1, wherein the sealing strip (3) is positioned at the joint of the door frame (1) and the limiting door frame (2), and the sealing strip (3) is attached to the steel structure door (5).

3. The steel structural door with good fire resistance effect as claimed in claim 1, wherein the heat insulation layer (503) is made of aluminum foil composite material.

4. The steel structural door with good fire-resistant effect as claimed in claim 1, wherein the first fire-resistant coating (504) and the second fire-resistant coating (505) are made of polyvinyl chloride flame-retardant organic resin material.

5. The steel structural door with the good fire resistance effect as claimed in claim 1, wherein the steel structural door (5) and the door frame (1) are hinged through a hinge (4).

6. The steel structure door with good fire resistance effect as claimed in claim 1, wherein the limiting hole (11) and the limiting cavity (7) are correspondingly arranged, and the locking rod (10) is matched with the limiting hole (11) and the limiting cavity (7).